I don't know much about spectacled parrotlets. I've heard people say the specs are sweeter. The trouble may well be finding them. I haven't been very much a part of the parrotlet community for a while so I can't recommend a spec breeder. Its been a while since I even saw reference to one online. I believe all of the common parrotlet species(pacific, green rump and spectacled) are sexually dimorphic. In terms of pet quality, I can tell you male and female pacific parrotlets are equal. As breeder birds, the females bite more than the males, but as pets both can be territorial, sweet, nippy, cuddly, bratty all at once.
If you want a bird that likes you, its best to just get one. Pairs of parrotlets are very sweet, but they likely won't like you.
I can't recommend a breeder. I sometimes have baby pacifics available myself. Although I only have one pair and they are older, so not sure if I'll have any more for a couple years. Maybe, maybe not. Be careful buying from parrotlet breeders in Iowa. I don't know them but a lot of little bird breeders have no regard for quarantine, disease control, low stress hand-feeding and weaning or nutrition. I haven't been overly impressed with Iowa bird breeders over the years, but its been a few since I checked in with any of them. Maybe someone new and good has come along.
